/*
 * Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
 * Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the name of Redis nor the names of its contributors may be used
 *     to endorse or promote products derived from this software without
 *     specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once
#include "hiredis.h"
#include <functional>

struct redisAsyncContext;
  /* Reply callback prototype and container */
typedef std::function<void(struct redisAsyncContext*, redisReply*, void*)> redisCallbackFn;
typedef std::function<bool(const char*, int)> SendDataCallbackFn;
typedef std::function<void(int)> DisconnectFn;

/* Connection callback prototypes */
typedef std::function<void(const struct redisAsyncContext*, int)> redisSessionCallback;

class redisAsyncContextWrapper{
private:
	redisAsyncContext* m_predisAsyncContext;
	bool	m_IsConnected;
public:
	redisAsyncContextWrapper();
	bool	CanbeUsed();
	void	SetConnected(bool flag);
	void	Init(SendDataCallbackFn sFun, DisconnectFn sDisconnectFn);
	/* Command functions for an async context. Write the command to the
	 * output buffer and register the provided callback. */

	int redisvAsyncWithBinaryCommand(redisCallbackFn fn, void *privdata, const char *data, size_t length);

	int redisAsyncCommand(redisCallbackFn fn, void *privdata, const char *format, ...);
	int redisAsyncCommandArgv(redisCallbackFn fn, void *privdata, int argc, const char **argv, const size_t *argvlen);
	void redisProcessCallbacks();
	int redisAsyncReaderFeed(const char *buf, size_t len);
	void SetSendCallBack(SendDataCallbackFn sFun);

private:
	void redisAsyncFree(redisAsyncContext *ac);
	int AsyncCommand(redisCallbackFn fn, void *privdata, const char *format, va_list ap);
};
